tire rotation (2 different ways for fwd?)

well i know this is a fairly simple question but my owners manual fro my 86 oldsmobile ciera has it that the front tires go to the same side on the rear and rears do the same (all tires stay on the same side), but all other material i have read and used (car care class, highschool) say the fronts go to the rear on same side and rears change to the other side when they go to the front. (rears change sides and go to front) well thats the best i can decsribe it. as far as i can remember the one that is listed in the olds manual is for directional tires and the other one is for all other types of tires on FWD cars. (because directional tires cant be used backwards at high speeds or they fall apart from the centrifical force, or something like that)

Your manual is from 1986!!
This is important, because earlier American radial tires made up to the late '80's did not like changing the direction of rotation.

If you have run a tire for thousands of miles on the right side of the car, then you put it on the left side, it will be rotating 'backwards', that is in the opposite direction than before. In older tires, this increased the risk of structural tire damage such as belt shifting and breaking.

Such damage did not happen every time a tire direction was reversed, but often enough. I ended up ruining a few tires this way, back in the '80's.

Since 1988 or so, supposedly all tires were made to reverse direction of rotation without damage, so you can rotate these ones from side to side, safely, (so long as you don't have a uni-directional tread design. If you do, they will have an arrow on the side, indicating direction of rotation)

ok thanks for clearing that up